PHILADELPHIA — As the new man running the 76ers, Brett Brown shakes a lot of hands. Monday, he was encouraging others to shake Khalif Wyatt’s.

“Look at the man!” Brown said about Wyatt, patting the rookie’s midsection during an impromptu passing in a back hallway at Wells Fargo Center.

Wyatt has done his part since signing with the Sixers this summer as an undrafted guard out of Temple. He’s shaved off 19 pounds and has worked diligently to tighten up his defense in a bid to earn a roster spot. Wyatt has three more preseason showings, after Monday’s exhibition against visiting Brooklyn, to show he’s worth keeping around.

“Every day is like an audition, pretty much,” Wyatt said.

The Atlantic 10 Conference Player of the Year as a senior at Temple, Wyatt was listed at 205 pounds. There wasn’t much truth to that, the Norristown native said.

“When I gave Indiana 31 (points),” Wyatt said of the Owls’ NCAA Tournament opponent, “I was 226.”

Since then, Wyatt has trimmed from 226 to 207, losing a bulk of that weight in pre-draft workouts at Impact Basketball in Las Vegas and while with the Sixers through training camp and in the preseason. It’s a good bet that Wyatt is competing with fellow undrafted guard Vander Blue for the final roster spot.

But just because they’re fighting for the same job doesn’t mean they’re the same player, Brown said.

“I think Vander is an in-your-face, full-court athlete who’s ready to get out, go and jump people, and I think Khalif is an old-school, old-man, YMCA player who really knows how to play basketball,” Brown said.

Blue, a 6-4, 200-pounder who said he models his game after “my big brother and mentor,” Miami’s Dwyane Wade, added he isn’t worried about Wyatt.

“I do what I can control and bring what I can — toughness, willingness to compete and try to make things happen,” said Blue, who like Wade played his college ball at Marquette. “I don’t look at it as competing with (Wyatt); I look at it as we’re getting each other better. I’m more concerned about myself than any other person.”

As for Brown getting out and shaking hands, the first-year coach said he went for a pregame run at nearby FDR Park.

“That’s a fantastic park,” said Brown, a Maine native. “Do I have to be aware over there?”